Cap brush for liquid-containing bottles



May 12, 1 42. J. L. OSBORNE 2,283,123

Iii:

l Ilmr Patented May 12, 1942 7 z CAP BRUSH FOR LIQUID-CONTAINING BOTTLESJames L. Osborne, Lyndhurst, N. J., assignor to Revlon ProductsCorporation, New York, N. Y., a corporation of New York Application July19, 1941, Serial No. 403,160

1 Claim.

customary cap socket. Although adhesives in-' termediate the socket andthe brush end have V to contract and yield within the socket so thatbeen employed, there is a tendency for the shaft a large number ofbrushes in a given lot are only loosely held in the caps and come loose.

It is the specific object of the invention to provdie a brush shaftconstruction enabling the use of relatively soft metal alloys, andenabling a tight fit between the upper end of the brush shaft and thecap socket without contraction and yielding of the shaft at such point,so that the brushes will remain firmly bonded to the caps.

The invention will be described with reference to the accompanyingdrawing, in which:

Figure 1 is a view in elevation showing an embodiment of the inventionapplied to a cap, the latter being shown in longitudinal section, theview being greatly enlarged.

Figure 2 is a plan view showing the upper portion of a shaft blank priorto rolling the latter into shaft form.

Figure 3 is a fragmentary View showing the upper end of the brush shankin Figure 1, but substantially enlarged.

Figure 4 is a plan view of the structure shown in Figure 3.

Figure 5 is a sectional isometric view of the structure shown in Figure3, the section being taken intermediate the knurled portion of theshank. h v

Figure 6 is a fragmentary view showing interlocking lips at oppositeareas of the knurled portion of the brush.

Figure 7 is a fragmentary section taken on the line 1-1, Figure 5.

Figure 8 is a view similar to Figure 6 showing the interlocking lipspositioned centrally of the knurled area of the brush shank.

Referring to the blank shown in Figure 2, which figure shows only theupper end of the blank, it will be seen that at each side thereof theblank has been cut with two spaced slots at right angles to thelongitudinal axis of the blank. When the blank is rolled so that thelongitudinal margins overlap, the position of the lips formedintermediate the slots is reversed, i. e., the lip between the slots onthe left side of the blank will overlap the right side and the lipbetween the slots on the right side will overlap the left side or marginof the blank. The blank is indicated at I, the slots at 2, theright-hand lip is shown at 3, the left-hand lip at 4, as will be morereadily seen by reference to Figures? and 4.

It is customary to knurl the blank near the upper end thereof, and thelips 3 and 4 may be formed either immediately below the knurling, asshown in Figures 1, 3 and 5, or at opposite sides of the knurl as shownin Figure'6, or within the knurled area as shown in Figure 8. For thesake of clarity the numeral 1 has been employed in the'drawing todesignate both the blank and formed brush shank.

By means of the invention an area of each margin of the brush shank isdisplaced so that as has been displaced to lie exteriorly, and when thebrush shank is rolled into final formation, the shoulders of the lipswill interengage and provide firm abutments which will maintain theannular form and final diameter of the brush shank at the area which isinserted into the cavity of the cap 5; and the brush shank will have notendency to contract and be pulled away from the cementing agents. Infact,by pressing the upper end of the brush shank into the cap cavity, apermanent bond may be provided which will eliminate the necessity for acementing agent. In some cases, one of the lips 3 or 4 may be eliminatedby cutting away the metal forming the lip, but I prefer to employ thetwo lips in conjunction.

Having described my invention, what I claim and desire to secure byLetters Patent, is as follows:

In a cap brush for liquid-containing bottles,

' a brush shank formed by rolling a sheet blank spaced transverselyextending slots, and the second margin being provided with colinearspaced transversely extending slots co-linear with the first namedslots, the slots at each margin providing a lip between them, and thelips being reversely bent, each lip having a lapped relationship to themargin of the shank which it en- Jgiages opposite to that of the margincarrying the JAMES L. OSBORNE.

